US20170245543A1 - Method of manufacturing a pre-vapor formulation including volatiles - Google Patents

Method of manufacturing a pre-vapor formulation including volatiles Download PDF

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Publication number
US20170245543A1
US20170245543A1 US15/052,940 US201615052940A US2017245543A1 US 20170245543 A1 US20170245543 A1 US 20170245543A1 US 201615052940 A US201615052940 A US 201615052940A US 2017245543 A1 US2017245543 A1 US 2017245543A1
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United States
Prior art keywords
volatiles
tobacco
tobacco material
vapor formulation
example embodiment
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US15/052,940
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English (en)
Inventor
Georgios D. Karles
San Li
Ben RAGLAND
Weiling Li
Erica SENA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altria Client Services LLC
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Altria Client Services LLC
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Publication date
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Priority to US15/052,940 priority Critical patent/US20170245543A1/en
Assigned to ALTRIA CLIENT SERVICES LLC reassignment ALTRIA CLIENT SERVICES LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LI, Weiling, KARLES, GEORGIOS, LI, SAN, RAGLAND, Ben, SENA, Erica
Priority to PCT/EP2017/054413 priority patent/WO2017144705A1/en
Priority to CA3010875A priority patent/CA3010875A1/en
Priority to RU2020124145A priority patent/RU2820667C2/ru
Priority to EP17707034.9A priority patent/EP3419442B1/en
Priority to JP2018541248A priority patent/JP6906534B2/ja
Priority to EP20166324.2A priority patent/EP3725169A1/en
Priority to MX2018009961A priority patent/MX2018009961A/es
Priority to CN201780009146.4A priority patent/CN108601390B/zh
Priority to KR1020187022618A priority patent/KR20180115688A/ko
Priority to RU2018133584A priority patent/RU2728619C2/ru
Priority to CN202210390586.1A priority patent/CN114532578A/zh
Publication of US20170245543A1 publication Critical patent/US20170245543A1/en
Priority to JP2021107455A priority patent/JP2021180655A/ja
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/20—Biochemical treatment
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
    • A24B15/241—Extraction of specific substances
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/305—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances of undetermined constitution characterised by their preparation
    • A24B15/306—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances of undetermined constitution characterised by their preparation one reactant being an amino acid or a protein, e.g. Maillard's reaction
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/305—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances of undetermined constitution characterised by their preparation
    • A24B15/307—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances of undetermined constitution characterised by their preparation using microorganisms or enzymes as catalysts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/12—Steaming, curing, or flavouring tobacco
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0288—Applications, solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography

Definitions

  • the present disclosure relates to a method of extracting volatiles from tobacco material and/or a method of making a pre-vapor formulation including the extracted volatiles.
  • An electronic vaping device includes a heater element, which vaporizes a pre-vapor formulation to produce a vapor.
  • the pre-vapor formulation may include aerosol formers, water, and/or flavors.
  • At least one example embodiment is related to a method of extracting volatiles from tobacco material and/or a method of making a pre-vapor formulation including the extracted volatiles.
  • a method of making a pre-vapor formulation includes heating tobacco material to a temperature ranging from about 50° C. to about 250° C. to form heated tobacco material, collecting volatiles from the heated tobacco material, and combining the volatiles with a pre-vapor formulation immediately after the collecting step.
  • the method may further include combining an additive with the tobacco material prior to the heating step.
  • the additive may include one or more of a casing solution, a solvent, a pH adjuster, and a flavorant.
  • the solvent may include one or more of water, ethanol, glycerine, and propylene glycol.
  • the collecting step may include inserting adsorbent material in the heated tobacco material.
  • the adsorbent material is configured to adsorb the volatiles.
  • the method may also include desorbing the volatiles from the adsorbent material and/or placing the adsorbent material in a reservoir containing the pre-vapor formulation and in an electronic vaping device.
  • the collecting step may include condensing the volatiles. In at least one example embodiment, the collecting step may include bubbling the volatiles through a solvent trap.
  • the method may also include rotating the tobacco material during the heating step.
  • the tobacco material may be in the form of one of a slurry, a wet tobacco mass, and a substantially dry tobacco mass.
  • the method may also include maintaining the pre-vapor formulation at or below room temperature.
  • the method may also include adjusting a pH of the tobacco material prior to the heating step.
  • the tobacco material may be heated for about 2 seconds to about 5 minutes.
  • the volatiles are combined with the pre-vapor formulation immediately after the collecting.
  • the tobacco material comprises a blend of two or more different tobacco varieties.
  • FIG. 1 is a diagram illustrating an apparatus for extracting volatiles from tobacco material and manufacturing a pre-vapor formulation according to at least one example embodiment.
  • FIG. 2 is a flowchart illustrating a method of making a pre-vapor formulation according to at least one example embodiment.
  • FIG. 3 is a flowchart illustrating a heating step according to at least one example embodiment.
  • FIG. 4 is a flowchart illustrating a collecting step and a combining step according to at least one example embodiment.
  • FIG. 5 is a flowchart illustrating a collecting step and a combining step according to at least one example embodiment.
  • FIG. 6 is a flowchart illustrating a collecting step according to at least one example embodiment.
  • first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or section from another region, layer, or section. Thus, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer, or section without departing from the teachings of example embodiments.
  • spatially relative terms e.g., “beneath,” “below,” “lower,” “above,” “upper,” and the like
  • the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the term “below” may encompass both an orientation of above and below.
  • the device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
  • Example embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of example embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.
  • An electronic vaping device such as an electronic cigarette or an electronic cigar, produces a vapor upon heating a pre-vapor formulation.
  • the vapor may pass through a substrate including tobacco material, where the vapor elutes volatiles from the tobacco material.
  • tobacco material may be heated.
  • the volatiles may be low volatility compounds that have a tendency to stay at the heater, which may cause decomposition at the high temperatures of the heater and may form a residue that may degrade performance of the heater.
  • At least one example embodiment relates to a method of extracting volatiles from tobacco material and adding the volatiles to a pre-vapor formulation. At least one example embodiment relates to an apparatus for forming the pre-vapor formulation including extracted volatiles.
  • the pre-vapor formulation may be a material or combination of materials that may be transformed into a vapor.
  • the pre-vapor formulation may be a liquid, solid and/or gel formulation including, but not limited to, water, beads, solvents, active ingredients, ethanol, plant extracts, natural or artificial flavors, and/or vapor formers, such as glycerin and propylene glycol.
  • the pre-vapor formulation includes volatiles extracted from tobacco as described herein.
  • FIG. 1 is a diagram illustrating an apparatus for extracting volatiles from tobacco material and manufacturing a pre-vapor formulation according to at least one example embodiment.
  • the various figures show sequential process steps. It should be understood by those skilled in the art that these different steps may involve batch, continuous or semi-batch operations.
  • the mass of treated tobacco may be mixed with additives and also pressurized at certain temperatures in a batch type vessel for a certain period of time before it is vented off or purged into a collection vessel.
  • fermentation or enzymatic processes potential to produce tobacco specific flavors are also included as part of the process for tobacco flavor creation and isolation.
  • an apparatus 5 for making the pre-vapor formulation may include a vessel 12 configured to hold tobacco material 10 .
  • a heat source 14 heats the tobacco material 10 to release volatiles 20 from the tobacco material 10 .
  • the heat source 14 may be an electrical heat source, which may be controlled and/or monitored by a control unit (not shown). In at least one example embodiment, heating may also be achieved by treating the tobacco material with steam or a mixture of steam with air.
  • the volatiles 20 are collected and directed to a vessel 18 containing the pre-vapor formulation 16 . In at least one example embodiment, the volatiles 20 are combined in the vessel 13 with the pre-vapor formulation 16 immediately after collection.
  • FIG. 2 is a flowchart illustrating a method of making a pre-vapor formulation according to at least one example embodiment.
  • the method generally includes mixing 75 tobacco material and at least one additive to form a mixture, heating 100 the mixture, collecting 200 the volatiles, and combining 300 the volatiles and the pre-vapor formulation.
  • the heating step 100 includes heating tobacco material to a temperature ranging from about 50° C. to about 250° C. (e.g., about 100° C. to about 200° C. or about 125° C. to about 175° C.) to form heated tobacco material.
  • the heating step 100 may be conducted for about 1 second to about 1 hour (e.g., about 2 seconds to about 50 minutes, about 5 second to about 40 minutes, about 10 seconds to about 30 minutes, or about 20 seconds to about 20 minutes).
  • the duration of the heating step or steps depends on the size of the vessel, the mass of tobacco being heated, and whether it is agitated or not, the nature and age of the tobacco, the temperature at which the tobacco is heated, and any prior treatment steps on the same tobacco.
  • the heating step 100 is conducted at atmospheric pressure. In other example embodiments, higher or lower pressures may be used.
  • the tobacco material may include material from any member of the genus Nicotiana. In at least one example embodiment, the tobacco material includes a blend of two or more different tobacco varieties.
  • suitable types of tobacco materials include, but are not limited to, flue-cured tobacco, Burley tobacco, Dark tobacco, Maryland tobacco, Oriental tobacco, rare tobacco, specialty tobacco, blends thereof and the like.
  • the tobacco material may be provided in any suitable form, including, but not limited to, tobacco lamina, processed tobacco materials, such as volume expanded or puffed tobacco, processed tobacco stems, such as cut-rolled or cut-puffed stems, reconstituted tobacco materials, blends thereof, and the like.
  • the tobacco material is in the form of a substantially dry tobacco mass.
  • the tobacco material may be rotated, agitated, and/or stirred during the heating step 100 .
  • the tobacco material may wetted or treated with an additive prior to the heating step 100 , and may be in the form of a slurry or wet tobacco mass.
  • the additive may include at least one of a solvent, flavors, pH modifying agents, and a casing solution.
  • the additive may be added to the tobacco material in order to release salt bound flavors and/or to introduce hydrolytic breakdown of flavor precursors.
  • the additives may be chosen to promote specific reactions, such as Maillard reactions. Changing the pH of tobacco may facilitate hydrolytic break down of glucosidically bound flavors.
  • the solvent includes at least one of water, ethanol, glycerin, and propylene glycol.
  • the solvent may improve the extraction and transfer efficiency of tobacco related flavor compounds from the heat treated tobacco material to a collection medium used in the collecting step 200 as described below. Using solvents of different polarities and volatilities may result in creating tobacco flavors with different sensorial profiles.
  • a portion of the pre-vapor formulation may be used as the solvent.
  • Tobacco extracts obtained by non-selective solvent extraction may contain extracted materials of different chemical nature and molecular sizes and/or weights.
  • Using this type of extracting pre-vapor formulations may pose issues due to compounds that may accumulate in the heating section of an electronic vaping device, which may lead to deposits and chemical reactions with byproducts.
  • the method of at least one example embodiment as disclosed herein may include use of highly volatile and easily transferable compounds that are eluted from tobacco due to their high vapor pressure.
  • the flavors may include any suitable flavor including menthol, mint flavors, fruit flavors, herb flavors, vegetable flavors, and the like.
  • the pH modifying agent includes one of an acid or a base.
  • the pH modifying agent is selected to adjust a pH of the tobacco material to a desired level.
  • the pH of the tobacco material may range from about 1 to about 14 or about 3 to about 12.
  • the casing solution may include water, humectants, such as propylene glycol, sugar, cocoa, licorice, fruit extracts, and other ingredients.
  • humectants such as propylene glycol, sugar, cocoa, licorice, fruit extracts, and other ingredients.
  • volatiles are released and may be collected 200 .
  • the method also includes collecting 200 volatiles from the heated tobacco material and combining 300 the volatiles with a pre-vapor formulation immediately after the collecting step 200 .
  • the volatiles are combined with the pre-vapor formulation at the site of collection to minimize and/or reduce losses and/or undesirable chemical reactions.
  • the pre-vapor formulation may be maintained at or below room temperature prior to the combining step 300 .
  • the pre-vapor formulation includes a vapor former.
  • Suitable vapor formers include, but are not limited to, polyhydric alcohols, such as propylene glycol, triethylene glycol, 1,3-butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • Example vapor formers are polyhydric alcohols or mixtures thereof, such as propylene glycol, triethylene 1,3-butanediol and glycerin.
  • the pre-vapor formulation may include propylene glycol and glycerin included in a ratio of about 3:2. In at least one embodiment, the ratio of propylene glycol and glycerin may be substantially 2:3 and 3.7. In at least one embodiment, the vapor former is included in an amount ranging from about 40% by weight based on the weight of the pre-vapor formulation to about 90% by weight based on the weight of the pre-vapor formulation (e.g., about 50% to about 80%, about 55% to about 75% or about 60% to about 70%).
  • the pre-vapor formulation optionally includes water.
  • Water may be included in an amount ranging from about 5% by weight based on the weight of the pre-vapor formulation to about 40% by weight based on the weight of the pre-vapor formulation, or in an amount ranging from about 10% by weight based on the weight of the pre-vapor formulation to about 15% by weight based on the weight of the pre-vapor formulation.
  • the vapor-forming substrate may comprise a single vapor former such as, for example, glycerin.
  • the vapor-forming substrate may comprise a combination of two or more vapor formers.
  • the pre-vaporization formulation may also include a flavorant in an amount ranging from about 0.01% to about 15% by weight (e.g., about 1% to about 12%, about 2% to about 10%, or about 5% to about 8%).
  • the flavorant may be a natural flavorant or an artificial flavorant.
  • the flavorant is one of tobacco flavor, menthol, wintergreen, peppermint, herb flavors, fruit flavors, nut flavors, liquor flavors, and combinations thereof.
  • the flavorant may include one or more volatiles extracted from tobacco material as disclosed herein.
  • the nicotine is included in the pre-vaporization formulation in an amount ranging from about 2% by weight to about 6% by weight (e.g., about 2% to about 3%, about 2% to about 4%, about 2% to about 5%) based on the total weight of the pre-vaporization formulation. In at least one embodiment, the nicotine is added in an amount of up to about 5% by weight based on the total weight of the pre-vaporization formulation. In at least one embodiment, the nicotine content of the pre-vaporization formulation is about 2% by weight or greater based on the total weight of the pre-vaporization formulation. In another embodiment, the nicotine content of the pre-vaporization formulation is about 2.5% by weight or greater based on the total weight of the pre-vaporization formulation.
  • the nicotine content of the pre-vaporization formulation is about 3% by weight or greater based on the total weight of the pre-vaporization formulation. In another embodiment, the nicotine content of the pre-vaporization formulation is about 4% by weight or greater based on the total weight of the pre-vaporization formulation. In another embodiment, the nicotine content of the pre-vaporization formulation is about 4.5% by weight or greater based on the total weight of the pre-vaporization formulation.
  • the volatiles may be included in the pre-vaporization formulation in an amount ranging from about 0.01% by weight based on the total weight of the pre-vaporization formulation to about 5% by weight based on the total weight of the pre-vaporization formulation (e.g., about 0.5% by weight to about 4% by weight or about 1% by weight to about 3% by weight).
  • the heating step 100 may be maintained and/or repeated until a desired amount of volatiles have been added to the pre-vapor formulation.
  • FIG. 3 is a flowchart illustrating a heating step of the method of FIG. 2 according to at least one example embodiment.
  • the heating step 100 may include a pre-heating step 101 during which the tobacco material is heated to a first temperature for a first time.
  • the heating step 100 may also include a first heating step 102 and a second heating step 102 .
  • the first heating step 102 may heat the tobacco material to a second temperature for a second time and the second heating step 103 may heat the tobacco material to a third temperature for a third time.
  • the pre-heating step 101 , first heating step 102 , and second heating step 103 may be at different times and temperatures.
  • various volatiles such as pyrazines, organic acids, and aromatic compounds, that may be released at different times and temperatures may be collected from the tobacco material and added to the pre-vapor formulation.
  • heating step 100 While not shown, fewer or additional heating steps may be included in the heating step 100 .
  • FIG. 4 is a flowchart illustrating a collecting step and a combining step of the method of FIG. 2 according to at least one example embodiment.
  • the collecting step 200 may include inserting 202 a sorbent in the heated tobacco material during, before, and/or immediately after the heating step 100 . Once the sorbent is inserted into the tobacco material, the sorbent material adsorbs and/or absorbs 204 the volatiles produced as the tobacco is heated.
  • the sorbent may be placed in a flavor cartridge coupled with an electronic vaping device so that flavor delivery may be achieved through elution of flavors from the adsorbent to the vapor steam passing through the cartridge and flavor delivery may be enhanced by heating the flavor cartridge.
  • a “sorbent” is a substance that may condense or hold molecules of other substances on its surface, and/or take up other substances (i.e., through penetration of the other substances into its inner structure and/or into its pores).
  • the sorbent may be any adsorbent, any absorbent, and/or any substance that may perform these functions.
  • the sorbent may be at least one of an activated carbon sorbents or other microporous materials.
  • the sorbent may be any material, which has the ability to absorb and/or adsorb gas constituents on the surface thereof include or to assimilate such constituents into the body thereof.
  • the sorbent may one or more adsorbents. Suitable sorbents and/or adsorbents include carbons such as activated carbon, aluminas, silicates, molecular sieves, zeolites, and polydimethylsiloxane (PDMS).
  • the sorbent may be in the form of a plurality of beads or in the form of a single, monolithic body.
  • the sorbent may he selected to absorb and/or adsorb volatiles having a desired particle size so as to achieve selective absorption of volatiles desired to be included in the pre-vapor formulation.
  • the sorbent is a microporous material (i.e., microporous sorbents) such as, an activated carbon.
  • the microporous sorbent may have pores with widths and/or diameters of less than about 20 Angstroms ( ⁇ ).
  • the method may also include desorbing 206 the volatiles from the sorbent.
  • the volatiles may be desorbed from the sorbent by extraction in an aerosol forming solvent, such as at least a portion of the pre-vapor formulation during the combining step 300 as shown in FIG. 4 .
  • the sorbent may be placed in a container along with at least a portion of the pre-vapor formulation or at least one ingredient (e.g., water or propylene glycol) of the pre-vapor formulation in order to extract the volatiles from the sorbent to form a mixture of pre-vapor formulation and extracted volatiles.
  • the mixture may then be added to an additional amount of pre-vapor formulation to form the pre-vapor formulation included extracted volatiles.
  • the volatiles may be desorbed from the sorbent using a solvent, and then immediately combined with the pre-vapor formulation after collection of the volatiles.
  • the sorbent instead of combining the volatiles with the pre-vapor formulation, the sorbent may be placed in an electronic vaping device between a heater and a mouth end of the electronic vaping device so that the volatile flavors may be eluted to the vapor during vaping.
  • the desorbing may include heated desorption followed by bubbling the volatiles through a solvent trap and filter.
  • the solvent may include a portion of the pre-vapor formulation or any other suitable solvent, such as water or ethanol.
  • FIG. 5 is a flowchart illustrating a collecting step and a combining step according to at least one example embodiment.
  • the collecting step 200 may include condensing 210 the volatile flavors.
  • the volatile flavors may be condensed by cooling the volatiles as the volatiles are extracted from the tobacco material during the heating step 100 .
  • the volatiles may travel through a pipe from the vessel holding the tobacco material to the vessel holding the pre-vapor formulation, and the pipe may be cooled to promote condensation along a length of the pipe. As the volatiles are cooled, the volatiles may condense on walls and/or surfaces of the pipe where the condensation may be collected.
  • the condensation after the volatiles condense of the walls and surfaces of the pipe, the condensation my drain into a collection container so that the condensed volatiles may be combined with the pre-vapor formulation.
  • the cooling may reduce the temperature of the volatiles to a temperature ranging from about ⁇ 78° C. to about 10° C.
  • the combining step 300 may include mixing 320 the condensed volatiles with a pre-vapor formulation.
  • the collecting step 200 may include bubbling 220 the volatiles through a solvent trap.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biochemistry (AREA)
  • Manufacture Of Tobacco Products (AREA)
US15/052,940 2016-02-25 2016-02-25 Method of manufacturing a pre-vapor formulation including volatiles Abandoned US20170245543A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US15/052,940 US20170245543A1 (en) 2016-02-25 2016-02-25 Method of manufacturing a pre-vapor formulation including volatiles
CN202210390586.1A CN114532578A (zh) 2016-02-25 2017-02-24 制造包含挥发物的蒸发前调配物的方法
EP20166324.2A EP3725169A1 (en) 2016-02-25 2017-02-24 Method of manufacturing a pre-vapor formulation including volatiles
CN201780009146.4A CN108601390B (zh) 2016-02-25 2017-02-24 制造包含挥发物的蒸发前调配物的方法
RU2020124145A RU2820667C2 (ru) 2016-02-25 2017-02-24 Способ изготовления состава, готового к испарению, содержащего летучие вещества
EP17707034.9A EP3419442B1 (en) 2016-02-25 2017-02-24 Method of manufacturing a pre-vapor formulation including volatiles
JP2018541248A JP6906534B2 (ja) 2016-02-25 2017-02-24 揮発分を含むプレベイパー製剤を製造する方法
PCT/EP2017/054413 WO2017144705A1 (en) 2016-02-25 2017-02-24 Method of manufacturing a pre-vapor formulation including volatiles
MX2018009961A MX2018009961A (es) 2016-02-25 2017-02-24 Metodo para fabricar una formulacion de prevaporizacion que incluye volatiles.
CA3010875A CA3010875A1 (en) 2016-02-25 2017-02-24 Method of manufacturing a pre-vapor formulation including volatiles
KR1020187022618A KR20180115688A (ko) 2016-02-25 2017-02-24 휘발성 물질을 포함하는 증기-전 제제 제조 방법
RU2018133584A RU2728619C2 (ru) 2016-02-25 2017-02-24 Способ изготовления состава, готового к испарению, содержащего летучие вещества
JP2021107455A JP2021180655A (ja) 2016-02-25 2021-06-29 揮発分を含むプレベイパー製剤を製造する方法

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CN (2) CN108601390B (ja)
CA (1) CA3010875A1 (ja)
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JP2019507592A (ja) 2019-03-22
WO2017144705A1 (en) 2017-08-31
RU2018133584A3 (ja) 2020-05-22
JP2021180655A (ja) 2021-11-25
CN108601390A (zh) 2018-09-28
JP6906534B2 (ja) 2021-07-21
RU2728619C2 (ru) 2020-07-30
EP3419442B1 (en) 2020-04-01
CA3010875A1 (en) 2017-08-31
RU2020124145A (ru) 2020-08-04
EP3419442A1 (en) 2019-01-02
MX2018009961A (es) 2018-11-29
KR20180115688A (ko) 2018-10-23
EP3725169A1 (en) 2020-10-21
RU2018133584A (ru) 2020-03-25
CN114532578A (zh) 2022-05-27
CN108601390B (zh) 2022-05-10

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